Microgrid Dynamic Performance Improvement Using a Doubly Fed Induction Wind Generator
Microgrid Dynamic Performance Improvement Using a Doubly Fed Induction Wind Generator
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DOI：
10.1109/tec.2008.2006556
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发表时间：
2009-02
影响因子：
4.9
通讯作者：
Majid Shahabi;M. Haghifam;M. Mohamadian;S. A. Nabavi-Niaki
中科院分区：
文献类型：
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作者：
Majid Shahabi;M. Haghifam;M. Mohamadian;S. A. Nabavi-Niaki
本文介绍了一种应用于双馈感应发电机（DFIG）的控制方法，以提供电压和频率调节能力，从而改善微电网系统的动态行为。微电网系统被假设为中压配电馈线的一部分，并且由两个分布式发电（DG）单元供电，即，燃气涡轮机同步发电机和变速风力涡轮机与DFIG。提出了一种双馈风力发电机组的控制方法，以改善电压和一次频率控制。两种不同的操作模式，即，在所提出的方法中使用了并网和孤岛模式，用于从正常操作到孤岛操作的适当转换。案例研究模拟的基础上计划和计划外孤岛的情况下，以评估控制方法的性能。研究结果表明，所提出的控制方法在微电网中的DG增加微电网系统的动态性能，减少频率变化，并提高在孤岛和自主操作的母线电压调节。
This paper describes a control approach applied on a doubly fed induction generator (DFIG) to provide both voltage and frequency regulation capabilities, and hence, an improvement in the dynamic behavior of a microgrid system. The microgrid system is assumed to be a portion of a medium voltage distribution feeder and is supplied by two distributed generation (DG) units, i.e., a gas-turbine synchronous generator and a variable-speed wind turbine with DFIG. A control approach algorithm is proposed for the DFIG unit to improve both voltage and primary frequency controls. Two distinct operation modes, i.e., grid-connected and islanding mode, are used in the proposed approach for proper transfer from normal to islanding operation. Case studies are simulated based on both planned and unplanned islanding scenarios to evaluate the performance of the control approach. The study results show that the proposed control approach for DGs in the microgrid increase the microgrid system's dynamic performance, reduce frequency changes, and improve bus voltages regulation during islanding and autonomous operations.